1 /* 2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms of version 2 of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it would be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 11 * 12 * Further, this software is distributed without any warranty that it is 13 * free of the rightful claim of any third person regarding infringement 14 * or the like. Any license provided herein, whether implied or 15 * otherwise, applies only to this software file. Patent licenses, if 16 * any, provided herein do not apply to combinations of this program with 17 * other software, or any other product whatsoever. 18 * 19 * You should have received a copy of the GNU General Public License along 20 * with this program; if not, write the Free Software Foundation, Inc., 59 21 * Temple Place - Suite 330, Boston MA 02111-1307, USA. 22 * 23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 24 * Mountain View, CA 94043, or: 25 * 26 * http://www.sgi.com 27 * 28 * For further information regarding this notice, see: 29 * 30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ 31 */ 32 #ifndef __XFS_INODE_ITEM_H__ 33 #define __XFS_INODE_ITEM_H__ 34 35 /* 36 * This is the structure used to lay out an inode log item in the 37 * log. The size of the inline data/extents/b-tree root to be logged 38 * (if any) is indicated in the ilf_dsize field. Changes to this structure 39 * must be added on to the end. 40 * 41 * Convention for naming inode log item versions : The current version 42 * is always named XFS_LI_INODE. When an inode log item gets superseded, 43 * add the latest version of IRIX that will generate logs with that item 44 * to the version name. 45 * 46 * -Version 1 of this structure (XFS_LI_5_3_INODE) included up to the first 47 * union (ilf_u) field. This was released with IRIX 5.3-XFS. 48 * -Version 2 of this structure (XFS_LI_6_1_INODE) is currently the entire 49 * structure. This was released with IRIX 6.0.1-XFS and IRIX 6.1. 50 * -Version 3 of this structure (XFS_LI_INODE) is the same as version 2 51 * so a new structure definition wasn't necessary. However, we had 52 * to add a new type because the inode cluster size changed from 4K 53 * to 8K and the version number had to be rev'ved to keep older kernels 54 * from trying to recover logs with the 8K buffers in them. The logging 55 * code can handle recovery on different-sized clusters now so hopefully 56 * this'll be the last time we need to change the inode log item just 57 * for a change in the inode cluster size. This new version was 58 * released with IRIX 6.2. 59 */ 60 typedef struct xfs_inode_log_format { 61 unsigned short ilf_type; /* inode log item type */ 62 unsigned short ilf_size; /* size of this item */ 63 uint ilf_fields; /* flags for fields logged */ 64 ushort ilf_asize; /* size of attr d/ext/root */ 65 ushort ilf_dsize; /* size of data/ext/root */ 66 xfs_ino_t ilf_ino; /* inode number */ 67 union { 68 xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/ 69 uuid_t ilfu_uuid; /* mount point value */ 70 } ilf_u; 71 __int64_t ilf_blkno; /* blkno of inode buffer */ 72 int ilf_len; /* len of inode buffer */ 73 int ilf_boffset; /* off of inode in buffer */ 74 } xfs_inode_log_format_t; 75 76 /* Initial version shipped with IRIX 5.3-XFS */ 77 typedef struct xfs_inode_log_format_v1 { 78 unsigned short ilf_type; /* inode log item type */ 79 unsigned short ilf_size; /* size of this item */ 80 uint ilf_fields; /* flags for fields logged */ 81 uint ilf_dsize; /* size of data/ext/root */ 82 xfs_ino_t ilf_ino; /* inode number */ 83 union { 84 xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/ 85 uuid_t ilfu_uuid; /* mount point value */ 86 } ilf_u; 87 } xfs_inode_log_format_t_v1; 88 89 /* 90 * Flags for xfs_trans_log_inode flags field. 91 */ 92 #define XFS_ILOG_CORE 0x001 /* log standard inode fields */ 93 #define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */ 94 #define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */ 95 #define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */ 96 #define XFS_ILOG_DEV 0x010 /* log the dev field */ 97 #define XFS_ILOG_UUID 0x020 /* log the uuid field */ 98 #define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */ 99 #define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */ 100 #define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */ 101 102 #define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ 103 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \ 104 XFS_ILOG_UUID | XFS_ILOG_ADATA | \ 105 XFS_ILOG_AEXT | XFS_ILOG_ABROOT) 106 107 #define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ 108 XFS_ILOG_DBROOT) 109 110 #define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ 111 XFS_ILOG_ABROOT) 112 113 #define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \ 114 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \ 115 XFS_ILOG_DEV | XFS_ILOG_UUID | \ 116 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ 117 XFS_ILOG_ABROOT) 118 119 #define XFS_ILI_HOLD 0x1 120 #define XFS_ILI_IOLOCKED_EXCL 0x2 121 #define XFS_ILI_IOLOCKED_SHARED 0x4 122 123 #define XFS_ILI_IOLOCKED_ANY (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED) 124 125 126 #ifdef __KERNEL__ 127 128 struct xfs_buf; 129 struct xfs_bmbt_rec_64; 130 struct xfs_inode; 131 struct xfs_mount; 132 133 134 typedef struct xfs_inode_log_item { 135 xfs_log_item_t ili_item; /* common portion */ 136 struct xfs_inode *ili_inode; /* inode ptr */ 137 xfs_lsn_t ili_flush_lsn; /* lsn at last flush */ 138 xfs_lsn_t ili_last_lsn; /* lsn at last transaction */ 139 unsigned short ili_ilock_recur; /* lock recursion count */ 140 unsigned short ili_iolock_recur; /* lock recursion count */ 141 unsigned short ili_flags; /* misc flags */ 142 unsigned short ili_logged; /* flushed logged data */ 143 unsigned int ili_last_fields; /* fields when flushed */ 144 struct xfs_bmbt_rec_64 *ili_extents_buf; /* array of logged 145 data exts */ 146 struct xfs_bmbt_rec_64 *ili_aextents_buf; /* array of logged 147 attr exts */ 148 unsigned int ili_pushbuf_flag; /* one bit used in push_ail */ 149 150 #ifdef DEBUG 151 uint64_t ili_push_owner; /* one who sets pushbuf_flag 152 above gets to push the buf */ 153 #endif 154 #ifdef XFS_TRANS_DEBUG 155 int ili_root_size; 156 char *ili_orig_root; 157 #endif 158 xfs_inode_log_format_t ili_format; /* logged structure */ 159 } xfs_inode_log_item_t; 160 161 162 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FDATA) 163 int xfs_ilog_fdata(int w); 164 #define XFS_ILOG_FDATA(w) xfs_ilog_fdata(w) 165 #else 166 #define XFS_ILOG_FDATA(w) \ 167 ((w) == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA) 168 #endif 169 170 #endif /* __KERNEL__ */ 171 172 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FBROOT) 173 int xfs_ilog_fbroot(int w); 174 #define XFS_ILOG_FBROOT(w) xfs_ilog_fbroot(w) 175 #else 176 #define XFS_ILOG_FBROOT(w) \ 177 ((w) == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT) 178 #endif 179 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FEXT) 180 int xfs_ilog_fext(int w); 181 #define XFS_ILOG_FEXT(w) xfs_ilog_fext(w) 182 #else 183 #define XFS_ILOG_FEXT(w) \ 184 ((w) == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT) 185 #endif 186 187 #ifdef __KERNEL__ 188 189 void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *); 190 void xfs_inode_item_destroy(struct xfs_inode *); 191 void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *); 192 void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *); 193 void xfs_iflush_abort(struct xfs_inode *); 194 195 #endif /* __KERNEL__ */ 196 197 #endif /* __XFS_INODE_ITEM_H__ */ 198